The situation in relation to police interviews in Gibraltar is somewhat unique. There are, of course, no local British solicitors and there is no RAF legal presence to give advice. Therefore it is perfectly legitimate to ask for a civilian defence lawyer from the UK to be brought in. The Legal Aid authority, AFCLAA, will cover all the expenses involved including the travel expenses.
Christopher Hill has carried out this role on many occasions in the past. There are certain Spanish lawyers in Gibraltar who have gained a basic qualification in dealing with military police interviews. However, these lawyers cannot claim their costs under the AFCLAA scheme and therefore service personnel have to pay them privately. There is no need to do this as all service personnel are entitled to a civilian lawyer from the UK free of charge.